/Engine/Source/Runtime/Slate/Public/Framework/Application/SlateApplication.h
virtual [FWidgetPath](API\Runtime\SlateCore\Layout\FWidgetPath) LocateWindowUnderMouse ( [UE::Slate::FDeprecateVector2DParameter](API\Runtime\SlateCore\Types\FDeprecateVector2DParameter) ScreenspaceMouseCoordinate, const [TArray](API\Runtime\Core\Containers\TArray)< [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWindow](API\Runtime\SlateCore\Widgets\SWindow) >> & Windows, bool bIgnoreEnabledStatus, int32 UserIndex )